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Preparation of chemically sintered ZnO films and their application in dye sensitized solar cells formed on plastic substrates

Paper ID Volume ID Publish Year Pages File Format Full-Text
28500 44078 2012 7 PDF Available
Title
Preparation of chemically sintered ZnO films and their application in dye sensitized solar cells formed on plastic substrates
Abstract

Meso-porous zinc oxide films were prepared on tin-doped indium oxide-coated, polyethelene naphthalate substrates from binder-free ZnO slurry. The reaction with ammonium hydroxide was found to increase connection between ZnO grains by forming a nano-rod like structure followed by heating at 150 °C. The enhancement of adhesion among ZnO grains was evaluated using a nano-scratch technique. Two different xanthene dyes were used to sensitize ZnO electrodes, with a photo-voltage of 657 mV, fill-factor of 73% and photo-current of 4.1 mA cm−2 with a maximum light to-electrical energy conversion efficiency of 2.0% being obtained for the plastic based ZnO|mercurochrome|electrolyte solar cell under 1 sun.

► Formation of nano-rods enhances electrical connectivity of ZnO films. ► Absorbance of xanthene dyes changes with solvent. ► Light to electrical energy conversion efficiency of the cell reaches to 2%.

Keywords
Polyethelene naphthalate; Polyethyleneimine; Flexible dye sensitized solar cell
First Page Preview
Preparation of chemically sintered ZnO films and their application in dye sensitized solar cells formed on plastic substrates
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 228, Issue 1, 15 January 2012, Pages 15–21
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering